12"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 12.25"W x 7.25"H] R-6.0 insulation with actual outer dimensions of

with actual outer dimensions of 22

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 18" or 18" x 8" duct opening (measured at the opening)

L/H@0 FT: - 250

+ Product Description Introducing our 24" x 36" or 36" x 24" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

+ Product Details Size - 32"w X 14"h X 2"d (for duct opening measurement only)

12"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 12.25"W x 7.25"H] R-6.0 insulation with actual outer dimensions of+ Product Details Size 12"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 13. 25" Width X 7. 25" Height. Design Designed for concealed, flush placement on your wall with a 3 8 inch space between louvers, this linear grille comes with an installation frame and clips for easy hook in assembly, ensuring a refined and seamless look. High Quality Aluminum The premium durable aluminum will never rust and it will never